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Sketchpad

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Sketchpad

A program that allowed users to draw on a screen with a light pen. It supported constraints (e.g. drawing a constrained ellipse produced a circle). It also had some computer aided design features (e.g. computing loads on beams).

Sketchpad was the subject of Ivan E. Sutherland's 1963 MIT PhD thesis, which opened the field of computer graphics. It was the progenitor of computer drawing packages like MacDraw or Adobe Illustrator. There is a film of Sketchpad in action.

It solved constraints using value inference and introduced the "ring" list structure.

["Sketchpad: A Man-Machine Graphical Communication System", I.e. Sutherland, MIT Lincoln Lab, TR 296 (Jan 1963)].

[Sammet 1969, p. 678].
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

Windows Ink

The handwriting and drawing capability in Windows. In the Windows 10 Anniversary Update, the Windows Ink Workspace was added, which provides a launching pad for the Sticky Notes note taker, Sketchpad drawing app and Screen Sketch (annotate the current screen capture). See Surface Pen and Windows 10 Anniversary Update.
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References in periodicals archive
In laptop mode, it's great for productivity, but the 360-degree hinge means it works just as well as a tablet or digital sketchpad when used with the new Pixelbook Pen stylus.
Examples of this include a profile on Ivan Sutherland, inventor of the Sketchpad, and the history of songlines, the use of song in order to geographically map walking paths in prehistoric times.
Other additions to Windows Ink includes performance improvements for Sketchpad and link to the handwriting training tool.
Thankfully they always form green shoots of creativity through the cracked pavements and potholes of my non-fiction, be it in the form of a haiku conversation between the prime minister and an ex-miner or a film poster for a screenplay about a bionic Nye Bevan sent back in time to hunt down any minister who attempts to privatise the NHS ("He'll put you in a hospital that he founded.") The graphic short story was a passion project born from the thought that I would spend a long time waiting in the maternity ward with a pen and sketchpad after my wife was induced.
A short piece for saxophone and piano was my 'sketchpad' for Caliban - the idea of a 'hybrid' instrument to reflect his persona of half man, half spirit.
icrosoft added a compass to Windows Ink's Sketchpad, presumably to let you know if your drawings were literally on the level.
The Pictures section features images submitted by users of the Nature Sketchpad website and Plum's Photo Hunt app.
Ahead of class, we were told to purchase HB pencils and a sketchpad. Much excitement ensued on our phone group chart as pictures of new pencil cases did the rounds.
Most CONTAM models are built using the ContamW interface, which uses a schematic sketchpad representation, and shown in Figure 1.
Such is the case with Kevin Meier, an incredibly talented Roseville-based illustrator and “concept innovator” who, as a child, discovered his love of creating with only a number two pencil and a sketchpad. After years of cultivating his skills, Meier is now poised to take Northern California by storm with his unique style and custom artistic offerings.
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